Hi Again

Strange one this - well I think so

Friend swapped out CD RW from an old PC into existing PC due to failure of existing drive. May be unrelated but since then PC comes back saying something like no drives detected and wont boot. Or no drive connected press F1 to continue.
Doesn't do it all the time. Tried swapping hdd into same model of PC thinking it was Mobo problem - maybe drive controller. It was OK at first now doing same thing again. If you go into bios and select Auto dectect drives also seems to fix the problem.
It has also come up sayin imminent drive failure back up etc.
Could the CD RW cause this or is it a failing Hard drive - would that effect the bios not detecting any of the drives?

As always all and any help greatly appreciated.

TP